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User Manual
4 Chapter 4 - Specifications
4.1 General Specifications
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Manual and Automatic Transfers
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Sense and transfer time – less than 6 milliseconds
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Break-Before make switching
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Selectable preferred source
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Selectable auto/manual retransfer
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In-phase transfer window – adjustable from 5 ± 1°
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Convection cooling
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Hot swappable electronic static switching module
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Live mimic on Hot swappable unit for indicating load supply status & alarms
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Make before break manual bypass switch to transfer load from static switch to direct source 1 or source 2
4.2 Electrical Specifications
ELECTRICAL
CHARACTERISTICS
Nominal Input Voltage
Nominal Output current
Frequency
Source unhealthy status
Load Power factor range
Load Crest factor
In-Phase transfer window
Source voltage distortion
Overload capability
Over current Protection
Short circuit withstand
capability
Redundant Control Power
supplies
Integral Maintenance Bypass
Alarm contacts
Unsynchronised transfer
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UNITS
110, 115 or 120 volts singe phase, 3W+G, 50 Hz. Solidly grounded
Volts
Amps
Hz
Guaranteed Transfer to alternate source within –15 % of Vnominal
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%
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125% of continuous current for 2 hrs, 1000% for two cycles minimum.
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Amps
upto 20,000 symmetrical amps, protected by internal fusing.
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taken from available source 1 and source 2
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Eight Isolated Normally Open alarm & static switch Status contacts.
6 milllisec for synchronized transfer and 16 millisec for unsynchronized
Chapter 3 – Installation Procedure
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DESCRIPTION
power sources
25
50 / 60
0.5 to unity leading or lagging
upto 3.5
Adjustable from 5 ± 1º
up to 10% THD
By semi conductor fuse
Make before break operation
transfer.
Page 4-1
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